I would probably stay away from the Rough Country and any of the "package lifts" you see on eBay, simply because of the trust factor.
Can you trust it or can you trust the person selling it??? And yes you would have to do an SYE with Custom shaft with 4"+
You may not HAVE to but it would be smart to do it....for your drivelines sake.

CoreyXJ_________________"Get busy living, or get busy dying..." - C.W.
"Do what you love to do...the money will eventually follow" - I. Larry

My SYE was $200. That is the kinda that you have to open up your transfercase to install. The Rubicon express hack and tap is $90.

The driveshaft I have from High Angle Driveline was $245. That price will be solid no matter what kinda of SYE you install. I dont know what it cost to lengthen a stock shaft. I dont think its a good idea, the sye route is a better way all around.

Ditto on the rouch Country lift, go with the RE 3.5" lift with the shocks, trust me you wont be disapointed!!
Reemeber, the advertised Rubicon Express hight is almost always UNDERestimated._________________97 XJ with some stuff

In the front there are two ways to accomplish this. You can do one or the other or a combination of both to gain the proper amount of bumpstop for a given amount of lift. Both options are easiest to do while installing the lift, since the spring needs to be out in order to install them.

In the pic above, the yellow thing inside the spring is the stock bumpstop. You can get extended ones for around $20 that look a little something like this:

The other option is to add a "puck" at the bottom of the spring perch (you can even use hockey pucks to save a little $$$).

For the rear, the bumpstops can be installed anytime. They look like this (these are the extended ones but you get the idea):

I would also recommend installing bumpstop plates to help stop the uptravel, keep the rear tires off of the fenders as well as prevent the rear springs from inverting. You can see the "lip" that extends out from the nutplate.

Here's a shot of that lip catching/making contact with the bumpstop.
_________________97 XJ Sport with a bunch of stuff

Quote:

Never argue with idiots, they drag you down to their level and beat you with experience

Like I said, if you plan it out, you could probably squeeze them in there. The bumpstops will keep the tires from stuffing in so much that they rub the upper wheel wells. Trimming will keep them from hitting the fenders. How much trimming you need will depend on the backspacing of the rims. The lower the backspacing the more they will stick out and thus the more trimming you will need._________________97 XJ Sport with a bunch of stuff

Quote:

Never argue with idiots, they drag you down to their level and beat you with experience

when I get a chance, I'll post a pic of my XJ with a BB with 31s and trimming and you will see how much more room I had to grow with only a 2" lift....at work now._________________97 XJ with some stuff

I have an 88XJ, 2"BB and 30x9.5. not really large tires I know. but I have no sway bars in my heep. and it flexs real good. no rubbing. so I'm going with 32x10.5 this spring. I'm told they might fit, depending on the rim I use.._________________Chicks Below Me...